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Left ventricular torsion (LVtor) measures the rotational deformation of the myocardium and plays an important role in LV contraction and filling. Two-dimensional (2D) speckle tracking echocardiography (STE) has been validated as a reproducible non-invasive technique to assess LVtor. LVtor is altered in many disease states, but the effects of loading conditions on LVtor have not been established. The aim of this study was to evaluate the effect of load alteration on LVtor as assessed by 2D STE.

european journal of echocardiography

The effect of loading alterations on left ventricular torsion: a simultaneous catheterization and two-dimensional speckle tracking echocardiographic study